Julia Fong, MD
Internal Medicine Physician · Los Altos, CA
Julia Fong, MD is an internal medicine physician with a practice address in Los Altos, California, and NPI 1154409746, issued on Nov 1, 2006. Check the license (California G81403, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Julia Fong
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G81403 CA
Self-reported in NPPES; status is on the state search - Practice location
- 370 Distel Cir, Los Altos, CA 94022
- Phone
- (650) 254-5200
- Enumerated
- Nov 1, 2006
- Record last updated
- May 28, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 00G814030 CA
- Medicare enrollment
- Enrolled (PECOS I20110125000895); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 370 Distel Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Julia Fong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G81403Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,511 Medicare Part D claims for 165 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium168 claims
- Amlodipine Besylate165 claims
- Lisinopril84 claims
- Losartan Potassium76 claims
- Levothyroxine Sodium58 claims
- Alendronate Sodium44 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationPalo Alto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Julia Fong among 17,696 internal medicine physician records in California
Julia Fong, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1992 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
29 internal medicine physician records list a practice address in Los Altos
They are 29 of the 718 NPPES records with a practice address in Los Altos, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Los Altos → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bhanu-Rekha Bhaskar, MDLos Altos, CA 940221932273539
- Jacqueline Denkabe, MDLos Altos, CA 940221194883520
- Jessica Favreau, MDLos Altos, CA 940221841450731
- Francis Lastufka, MDLos Altos, CA 940221144312141
- Janusz Madej, M.D.Los Altos, CA 940221376616706
- Carrie Mousseau, M.D.Los Altos, CA 940221447387451
- Amy Muzaffar, MDLos Altos, CA 940221124191481
- Gina Serraiocco, MDLos Altos, CA 940221063504553
Common questions
What is Julia Fong, MD's NPI number?
Julia Fong, MD's National Provider Identifier (NPI) is 1154409746, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Julia Fong, MD located?
The NPPES record lists a practice address at 370 Distel Cir, Los Altos, CA, 94022. Phone: (650) 254-5200. Providers update this record themselves, so call before visiting.
How can I verify Julia Fong, MD's license?
NPPES lists California license number G81403, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Julia Fong, MD prescribe under Medicare Part D?
In 2024, Julia Fong, MD had 1,511 Medicare Part D claims for 165 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.